Given the feeding thing I'd try chiro or osteo, yeah.
Just try to be realistic with her and yourself - it is really hard and you do need a break sometimes. Working around it is often more effective. so doing whatever you can to maximise sleep - bedshare, nap during the day, forget about housework, sleep ins on the weekend, etc,etc
in a couple of year's time you'll look back and think, oh yeah, that wasn't so bad really